<template>
  <el-dialog :title="'导入物料分类'" :visible.sync="open" width="400px" append-to-body>
    <el-upload
      ref="upload"
      :limit="1"
      accept=".xlsx, .xls"
      :headers="upload.headers"
      :action="upload.url"
      :disabled="upload.isUploading"
      :on-progress="handleFileUploadProgress"
      :on-success="handleFileSuccess"
      :auto-upload="false"
      drag
    >
      <i class="el-icon-upload"></i>
      <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
      <div class="el-upload__tip" slot="tip">只能上传Excel文件，且不超过5MB</div>
    </el-upload>
    <div slot="footer" class="dialog-footer">
      <el-button type="primary" :loading="upload.isUploading" @click="submitFileForm">确 定</el-button>
      <el-button @click="open = false">取 消</el-button>
    </div>
  </el-dialog>
</template>

<script>
import { getToken } from "@/utils/auth";

export default {
  data() {
    return {
      // 是否显示弹出层
      open: false,
      // 上传参数
      upload: {
        // 是否上传中
        isUploading: false,
        // 设置上传的请求头部
        headers: { Authorization: "Bearer " + getToken() },
        // 上传的地址
        url: process.env.VUE_APP_BASE_API + "/basic/materialCategory/importData"
      }
    };
  },
  methods: {
    // 显示导入对话框
    show() {
      this.open = true;
    },
    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true;
    },
    // 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.isUploading = false;
      this.$refs.upload.clearFiles();
      this.open = false;
      if (response.code === 200) {
        this.$message({
          type: "success",
          message: response.msg || "导入成功"
        });
        this.$emit("ok");
      } else {
        this.$modal.msgError(response.msg);
      }
    },
    // 提交上传文件
    submitFileForm() {
      this.$refs.upload.submit();
    }
  }
};
</script> 